Nut-lock.



PATENT-ED SEPT. 18, 1906.

M. J. HARW OOD.

NUT LOCK. APPLICATION FILED MAY 8,1906

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WITNESSES: I WA MICHAEL J. HARWOOD, OF CLEVELAND, OHIO.

NUT-LOCK.

Specification of Letters Patent.

Patented Sept. 18, 1906.

Application filed ay 8, 1906. Serial No. 315,786.

To all whom it may concern:

Be it known that I, MICHAEL J. HARWOOD, a citizen of the United States,residing at Cleveland, in the county of Cuyahoga and State of Ohio, haveinvented new and useful Im rovements in Nut-Locks, of which the folowing is a specification.

This invention is a nut-lock, and has for its object to provide animproved device of this kind for lockin a series of nuts, it beingespecially adapted for use in connection with railjoints.

In the accompanying drawings, Figure 1 is a perspective view showing theapplication of the invention. Fig. 2 is a perspective view ofone memberof the locking device. Fig. 3 is a perspective view of the other member.

Referring specifically to the drawings, 5 denotes two adjoiningrail-sections, which are united by splice-bars 6, fastened by bolts 7 inthe usual manner. The locking device comprises two members 8 and 9,respectively, which are clearly illustrated in Figs. 2 and 3. The member8 comprises a plate 10, having bolt-holes 11. At each end of the plateare vertically-spaced outwardly extending flanges 12, havingvertically-alined openings 13 to receive split keys 14. The member 9comprises abar 15, having T-shaped ends 16. A series of verticalprojections 17 extend from the top of the bar. These projections arearranged in airs, according to the number of nuts to be ocked, and thedistance between the members of each pair is substantially the same asthe distance between two opposite sides of nut is placed between notturn.

In use the member 8 is placed on the outside of the splice-bars 6 withthe bolts 7 extending through the holes 11, after which the nuts 18are-screwed on. The bar 15 is then placed across the plate -10 on theoutside the projections it canthe nut, so that when the thereofandbetween the flanges 12, with the projection 17 engaging oppositesides of the nuts, all the nuts first being turned until said sidesextend in a vertical, plane. The T- shaped ends 16 of the bar 15 preventlongi tudinal displacement thereof, and the bar is secured againstlateral displacement by the split keys 14, which are extended behind thebar through the openings 13 in the flanges 12.

The device herein described can be readily a plied, and when so appliedsecurely locks tfle nuts on the bolts. It is especially adapted forrail-joints, as it also reinforces the splice-bars. Nospeciallyconstructed bolt or nut is required, and the ordinary form ofsplice-bars can be used. The device is also simple in construction andcan be cheaply produced, the members 8 and 9 being single castings.

I claim 1. A nut-lock comprising a plate having bolt-holes, andprojecting spaced flanges at its ends, and a bar extending across saidplate and between said flanges, and secured thereto, said bar havingprojections adapted to engage opposite sides of a nut.

2. A nut-lock comprising a plate having bolt-holes, and projectingvertically-spaced flanges at its ends, a bar extending across said plateand between the flanges, and having T-shaped ends, keys extendingthrough the flanges behind the bar, and a series of projections arrangedin pairs, extending from the bar, each pair being adapted to engage oposite sides of a nut.

11 testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

MICHAEL J. HARWOOD.

Witnesses: I

JOHN A. BOMMHARDT, SIIULEY J. BOMMHARDT.

